** Summary **

'''[http://web.eecs.umich.edu/~mckay/computer/xop0.4.tar.gz%|%Xop]''' provides Tcl/Tk with access to various low-level X window system functions.


** See Also **

   [http://www.flightlab.com/~joe/gutter/packages/xop.html%|%xop]:   in the [GUTTER]

** Description **

Capabilities include:

   * The ability to query arbitrary windows on Tk's display
   * Access to and control of X cut buffers
   * Bell frequency, volume, and duration control
   * Access to X drawables, including dumping their contents to Tk images
   * Querying and manipulation of the X event queue
   * Reading of window-manager-related window properties
   * Colormap control

These facilities are provided via [`xop`]. The intended purpose of the Xop
package is to provide certain low-level X11 facilities required by window
managers, but the package need not be used in that way.

<<categories>> Package | Neil McKay